Title :
Investigation on wideband tubes
Author :
Park, Gun-Sik ; Ha, Hyun-Jun ; Jung, Soon Shin
Author_Institution :
Dept. of Phys. Educ., Seoul Nat. Univ., South Korea
Abstract :
Ku-band folded waveguide type TWT is fabricated. This particular type of TWT draws attention for its robust structure and easier coupling. The linear theory predicts a gain of 2 dB/cm and a bandwidth 37% at the center frequency of 14 GHz when the parameters of the circuit are b=0.469 cm, l=0.746 cm, h=2.017 cm. A dispersion relation is derived using an equivalent circuit model and is compared with HFSS simulation. The electron beam and its diagnostics, solenoid, RF circuit, and other components are discussed
Keywords :
dispersion relations; electron beams; microwave tubes; travelling wave tubes; waveguides; 0.469 cm; 0.746 cm; 14 GHz; 2.017 cm; HFSS simulation; Ku-band TWT; RF circuit; SHF; coupling; dispersion relation; electron beam diagnostics; equivalent circuit model; folded waveguide type; linear theory; robust structure; solenoid; wideband tube; Bandwidth; Circuit simulation; Coupling circuits; Dispersion; Electron beams; Equivalent circuits; Frequency; Gain; Robustness; Wideband;
Conference_Titel :
Microwave and Millimeter Wave Technology Proceedings, 1998. ICMMT '98. 1998 International Conference on
Conference_Location :
Beijing
Print_ISBN :
0-7803-4308-5
DOI :
10.1109/ICMMT.1998.768480
